“这下又得挨爸爸妈妈的批评了。”小灵通愁眉苦脸地说。“出什么事情了吗?”小好问和小粗心忙问道。小灵通沮丧地说:“我把家里的钥匙弄丢了,万一小偷捡到钥匙,偷走家里的东西怎么办?”关主安慰他说:“别着急,把门锁换了就行了。你家也可以装一扇不用钥匙开启的门,它们可都是具有高超的看家本领的智能帮手!我们赶紧去看看吧!” “This has to be criticized by parents again and again. ” PHS frowned. “What happened?” Asked little and asked carelessly. PHS frustrated: “I lost the keys at home, in case the thief picked up the key to steal the things at home how to do? ” The Lord comforted him: "Do not worry, the door lock on the line Your home can also be installed without a key to open the door, they are all smart helper with superb housekeeping skills! Let's go and have a look!